Node:Changes Introduced in Version 3.9.1, Previous:Changes Introduced in Version 3.9, Up:Revision history

Changes Introduced in Version 3.9.1

Version 3.9.1 is mainly a bugfix release. New features:

• Support for Compaq Tru64 5.1, IRIX 6.5, MacOS X 10.1 (Darwin), AIX 4.3.3 and HP-UX 11.
• Jasper (the Java interface) is now supported on most platform.
• library('linda/server') now also prints the address of connecting clients.
• library('linda/server') can apply a user specified filter to reject or accept incoming connections; see Server.
• Added --moveable option to splfr.
• Added --nocompile option to spld.
• clpfd:case/4 takes a new option which effectively extends the relation by one argument, corresponding to the ID of the leaf node reached by a particular tuple. Every ID should be a unique integer. Several consistency checks added.
• clpfd:all_different/1 takes a new option consistency(C) to control the level of consistency to be achieved. This supersedes the old option global(Bool).
• clpfd:sorting/3 is a new constraint, capturing the relation between a list of values, a list of the values in ascending order, and their positions in the original list.
• clpfd:fd_var/1 is new; checks that the argument is currently an unbound variable which is known to the CLPFD solver.
• SP_get_integer_bytes, SP_put_integer_bytes can be used to pass arbitrarily sized integers (bignums) between C and Prolog. See Accessing Prolog Terms.

Other changes:

• Changed the name of the directory where run-time systems on target machines (see UNIX Runtime Systems on Target Machines) can find supporting files. The directory name is now version specific, e.g., $SP_APP_DIR/sp-3.9.1/. If no such directory can be found, the old name ($SP_APP_DIR/lib/) is tried as well.

Bugs fixed:

• Compiler bug affecting very large clauses.
• Dangling pointer issue with suspended goals.
• Native SPARC in-core compiler indexing bug.
• Top-level problems: phoney goal shown in syntax error messages; blocked goals suppressed if no bindings to display.
• listing(_:_) printing imported clauses multiple times.
• Character code 160 (no-break space) is a layout-char, not a symbol-char.
• CHR code transformation bug.
• CLPFD: knapsack/3 broken; problems with very large domain bounds; bugs in disjoint2/2 with wrap/4 option; missing solutions in case/4; fd_copy_term/3 did not preserve all domain variables.
• The --output option to splfr broken.
• The global variable sp_GlobalSICStus is now defined also when --main=none is passed to spld.
• spxref: did not follow arbitrary directives; problem with absolute file name resolution.
• Jasper: client thread did not detect failure of server thread to create a SICStus object.
• Jasper: bugs in class Jasper$JasperProlog: consFunctor and consList gave NoSuchMethodException.
• Jasper: [-term] in method meta-calls to Java from Prolog did not work.
• Jasper: Java longs (64-bit signed ints) passed between Java and Prolog are no longer truncated to 32 bits.
• Jasper: bugs in class Jasper$JasperTerm: compare, getArg, getDouble, getFunctorArity, getList, and unify did not work properly.
• Jasper: bugs in class SICStus: consFunctor(String, Term[]) and newTerm(String, Term[]) gave ClassCastException.
• Jasper: Fixed bug causing ClassCastException when doing callbacks in thread safe Jasper. Jasper did not keep track of current caller properly.
• Foreign resources and data resources could not have names containing w or W.
• SICStus could crash in the deinit functions of --multi-sp-aware foreign resources.
• Exception (SP_raise_exception) and failure (SP_fail) from foreign resource init or deinit functions are now handled; see Init and Deinit Functions.
• unload_foreign_resource(Name) now raises an existence error instead of merely failing if no foreign resource Name is loaded.
• Printing and reading floats was broken in locales redefining the radix character.
• library(fastrw) now raises an existence error when reading a term from an already closed stream, similar to get/1 etc. It used to give some arbitrary error in this case. The library still does not handle end of file within terms.

  library(fastrw) is an (undocumented) support library used by library('linda/client'), library('linda/server') and library(bdb).

• linda:linda/1 is now a meta-predicate.
• library(comclient) would crash for in/out arguments passed as a mutable.
• system:mktemp/2, system:tmpnam/1: Added error checking.

  On some platforms the linker would complain about possibly unsafe use of mktemp() when linking statically with the system foreign resource. This has been worked around by using mkstemp() internally when available. For this reason, file names created by system:tmpnam/1 may differ from earlier releases.

  The robustness and security issues surrounding the use of the ANSI C mktemp() and tmpnam() routines also applies when using system:mktemp/2 and system:tmpnam/1.

• On UNIX library(sockets) now ensures that SIGPIPE is ignored in run-time systems (It was always ignored on development systems). This avoids having the process killed by SIGPIPE when SICStus writes to a socket where the other end has closed the connection.